@Michael Lantz Are you installing using Something Else?
- If you haven't I would try - it will allow you to select the and configure the partitions - You need 1 as a root"/" - this is a drop down window within the partitioning window. BUT if no disks are presented but the LiveUSB.... See UEFI
Also depending on disk configuration - it may not be exactly labeled sda... If it uses flash type disk it may be something like /mmpxxx I dont recall the exact.
If it has multiple disks, it could be sdb
You mention formatting the drive - the entire disk or partition? If Windows is still installed, it can lock the drive (search for disabling fast boot)
Is this a BIOS or UEFI boot Laptop - If UEFI and using the regular LL install the disk may not be seen (most likely you have SecureBoot disabled to see the USB)
- If so, disable UEFI in BIOS = or set to Legacy in order to install LL. OR Download the UEFI LL installer - it will show a prior version but will update fine.
-If you're not sure, download and try the LL UEFI version..
If these don't help right off - we might need additional system info
** Update **
Looks to be UEFI - I would use the LL UEFI
https://www.linuxliteos.com/forums/linux-lite-software-development/uefi-build-test/msg44253/#msg44253https://www.dell.com/support/article/us/en/04/qna25787/latitude-e6410-with-more-than-4gb-memory-will-not-boot-to-uefi-enabled-os?lang=enThe 1 that worked (RAID) see if Legacy boot is enabled -- UEFI disabled..